 const joi=require('joi')

 const title=joi.string().required()
 const cate_id=joi.number().integer().min(1).required()
 const content=joi.string().required().allow('')
 const state = joi.string().valid('已发布', '草稿').required()

 exports.add_article_schema={
    body:{
        title,
        cate_id,
        content,
        state
    }
 }